Telemetrology by processing digital moiré patterns

Autores
Bava, Jose Alberto; Laquidara, Anibal Pablo; Bava, Jose Alberto; Garavaglia, Mario Jose
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Operations with hidden optoelectronic grid patterns for measuring distances from a camera to an object were described in recent papers. In this paper, the possibility of performing metrological teleoperations with digital moiré patterns processing is discussed. We introduce two new processes: (1) instead of using hidden grids as in previous works, we digitally apply contrasted Ronchi grids to the images by an AND operation; (2) the process is related to the generation of moiré fringes. We perform this operation at two slightly different camera-object distances where the camera displacement ∆L is known. By using this method it is possible to measure both the object dimensions and the distance between the object and camera in the same operation. In a previous paper a relative uncertainty of less than 10% for a distance of 40 m from a photographic analogue camera to an object was reported. In the experimental laboratory demonstration presented in this paper using our method of digital moiré pattern processing, it was possible to reduce the uncertainty to 1.2% for a camera-object distance of 2 m and to 4% for 12 m, using an object dimension of 30 cm. Experimental results for several camera positions are presented along with sources of uncertainties. We also present concluding remarks and prospects for future work.
Fil: Bava, Jose Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Fil: Laquidara, Anibal Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Fil: Bava, Jose Alberto. Universidad Politécnica de Valencia; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Garavaglia, Mario Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Materia
TELEMETROLOGY
MOIRE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/155813
Acceder
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spelling Telemetrology by processing digital moiré patternsBava, Jose AlbertoLaquidara, Anibal PabloBava, Jose AlbertoGaravaglia, Mario JoseTELEMETROLOGYMOIREhttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2Operations with hidden optoelectronic grid patterns for measuring distances from a camera to an object were described in recent papers. In this paper, the possibility of performing metrological teleoperations with digital moiré patterns processing is discussed. We introduce two new processes: (1) instead of using hidden grids as in previous works, we digitally apply contrasted Ronchi grids to the images by an AND operation; (2) the process is related to the generation of moiré fringes. We perform this operation at two slightly different camera-object distances where the camera displacement ∆L is known. By using this method it is possible to measure both the object dimensions and the distance between the object and camera in the same operation. In a previous paper a relative uncertainty of less than 10% for a distance of 40 m from a photographic analogue camera to an object was reported. In the experimental laboratory demonstration presented in this paper using our method of digital moiré pattern processing, it was possible to reduce the uncertainty to 1.2% for a camera-object distance of 2 m and to 4% for 12 m, using an object dimension of 30 cm. Experimental results for several camera positions are presented along with sources of uncertainties. We also present concluding remarks and prospects for future work.Fil: Bava, Jose Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; ArgentinaFil: Laquidara, Anibal Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; ArgentinaFil: Bava, Jose Alberto. Universidad Politécnica de Valencia; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Garavaglia, Mario Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; ArgentinaSociety of Photo-Optical Instrumentation Engineers2008-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/155813Bava, Jose Alberto; Laquidara, Anibal Pablo; Bava, Jose Alberto; Garavaglia, Mario Jose; Telemetrology by processing digital moiré patterns; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 47; 4; 01-4-20080091-3286CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.spiedigitallibrary.org/journals/optical-engineering/volume-47/issue-4/043603/Telemetrology-by-processing-digital-moir%c3%a9-patterns/10.1117/1.2911717.short?SSO=1info:eu-repo/semantics/altIdentifier/doi/10.1117/1.2911717info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:19Zoai:ri.conicet.gov.ar:11336/155813instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:31:19.314CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Telemetrology by processing digital moiré patterns
title Telemetrology by processing digital moiré patterns
spellingShingle Telemetrology by processing digital moiré patterns
Bava, Jose Alberto
TELEMETROLOGY
MOIRE
title_short Telemetrology by processing digital moiré patterns
title_full Telemetrology by processing digital moiré patterns
title_fullStr Telemetrology by processing digital moiré patterns
title_full_unstemmed Telemetrology by processing digital moiré patterns
title_sort Telemetrology by processing digital moiré patterns
dc.creator.none.fl_str_mv Bava, Jose Alberto
Laquidara, Anibal Pablo
Bava, Jose Alberto
Garavaglia, Mario Jose
author Bava, Jose Alberto
author_facet Bava, Jose Alberto
Laquidara, Anibal Pablo
Garavaglia, Mario Jose
author_role author
author2 Laquidara, Anibal Pablo
Garavaglia, Mario Jose
author2_role author
author
dc.subject.none.fl_str_mv TELEMETROLOGY
MOIRE
topic TELEMETROLOGY
MOIRE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Operations with hidden optoelectronic grid patterns for measuring distances from a camera to an object were described in recent papers. In this paper, the possibility of performing metrological teleoperations with digital moiré patterns processing is discussed. We introduce two new processes: (1) instead of using hidden grids as in previous works, we digitally apply contrasted Ronchi grids to the images by an AND operation; (2) the process is related to the generation of moiré fringes. We perform this operation at two slightly different camera-object distances where the camera displacement ∆L is known. By using this method it is possible to measure both the object dimensions and the distance between the object and camera in the same operation. In a previous paper a relative uncertainty of less than 10% for a distance of 40 m from a photographic analogue camera to an object was reported. In the experimental laboratory demonstration presented in this paper using our method of digital moiré pattern processing, it was possible to reduce the uncertainty to 1.2% for a camera-object distance of 2 m and to 4% for 12 m, using an object dimension of 30 cm. Experimental results for several camera positions are presented along with sources of uncertainties. We also present concluding remarks and prospects for future work.
Fil: Bava, Jose Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Fil: Laquidara, Anibal Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Fil: Bava, Jose Alberto. Universidad Politécnica de Valencia; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Garavaglia, Mario Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
description Operations with hidden optoelectronic grid patterns for measuring distances from a camera to an object were described in recent papers. In this paper, the possibility of performing metrological teleoperations with digital moiré patterns processing is discussed. We introduce two new processes: (1) instead of using hidden grids as in previous works, we digitally apply contrasted Ronchi grids to the images by an AND operation; (2) the process is related to the generation of moiré fringes. We perform this operation at two slightly different camera-object distances where the camera displacement ∆L is known. By using this method it is possible to measure both the object dimensions and the distance between the object and camera in the same operation. In a previous paper a relative uncertainty of less than 10% for a distance of 40 m from a photographic analogue camera to an object was reported. In the experimental laboratory demonstration presented in this paper using our method of digital moiré pattern processing, it was possible to reduce the uncertainty to 1.2% for a camera-object distance of 2 m and to 4% for 12 m, using an object dimension of 30 cm. Experimental results for several camera positions are presented along with sources of uncertainties. We also present concluding remarks and prospects for future work.
publishDate 2008
dc.date.none.fl_str_mv 2008-04-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/155813
Bava, Jose Alberto; Laquidara, Anibal Pablo; Bava, Jose Alberto; Garavaglia, Mario Jose; Telemetrology by processing digital moiré patterns; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 47; 4; 01-4-2008
0091-3286
CONICET Digital
CONICET
url http://hdl.handle.net/11336/155813
identifier_str_mv Bava, Jose Alberto; Laquidara, Anibal Pablo; Bava, Jose Alberto; Garavaglia, Mario Jose; Telemetrology by processing digital moiré patterns; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 47; 4; 01-4-2008
0091-3286
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.spiedigitallibrary.org/journals/optical-engineering/volume-47/issue-4/043603/Telemetrology-by-processing-digital-moir%c3%a9-patterns/10.1117/1.2911717.short?SSO=1
info:eu-repo/semantics/altIdentifier/doi/10.1117/1.2911717
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Society of Photo-Optical Instrumentation Engineers
publisher.none.fl_str_mv Society of Photo-Optical Instrumentation Engineers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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